Splitting machine



March 19, 1935.

H. LYOQ 1,994,584

SPLITTING MACHINE Filed April 12, 1934 2 Sheets-Sheet 1 //\/VE/V TUR Patented Mar. 19, 11935 J I PAT '5' IF E SPLITTING MACHINE Harry Lyon, Holbrook, Mass, assignor to United Shoe Machinery Corporation, Paterson, N. J., acorporation'of New Jersey Application April 12, 1934, Serial No; 720,279

9 cams. (o1. 69--11) This invention relates to splitting machines and Fig. 3 is a plan of a portion of the machine is herein illustrated as embodied in amachine for showing, a sole in process of being operated; upon. removing a thin shaving or split of uniform thick- The frame 5 has integral with it two alined ness from the grain side of a'leather sole or insole. half-bearings 7, 9 in which are received respecj- 5 In the manufacture of boots and shoes, for tively the trunnions 11, 13 of a knife and gage 5 example in the preparation of insoles for welt carrier 15, saidcarrier' being heldin adjusted shoes, it is customary to remove a thin shaving angular position about the axis of itstrunnions or split from the grain side of each insole to by clamping caps 17, 19 which are fastened remake theinsoles more flexible and to prevent spectively to the half-bearings 7, 9 by cap screws them from cracking during wear of the shoe in 21. A knife 23 is adjustably fastened on an in 10 which they are to be incorporated. It is' also clined plate or flange 25 of the carrier by bolts customary in some cases to remove a thin grain 2'7, saidbolts passing through holes in thef knife split from the tread faces of outsoles before they, and through slots in the flange. The knife may are incorporated inshoes instead of'buffing. said thus be adjusted in an inclined path after the i5 tread faces after the soles have been attached to bolts 27 have been loosened, and may be adjusted 15 the bottoms of shoes, a machine for performing angularly by loosening the cap screws 21 and theseoperations being disclosed in United States swinging the carrier 15 about the axis of its Letters Patent No. 1,260,436, granted March 26, trunnio-nsll, 13. i v V 1918, upon an application filed February 12, 1915, Slidable in anundercut guideway in the carinthe name of Thomas J .OKeefie. rier 15' is a work presser or gage 29, the lower 20' In the patented machine a sole, insole or other portion of which is rounded as indicated at 29' pieces of leather'is fed overxa table and past a (Fig.2) so'that the effective portion of the gage stafilmarry knife y a yielding 01 the a i o is a thin edge located slightly, above the edge w ic s p lel to the cu tin ed e ofthe knife, of, the knife. It is the distance of the. gage .29 the thickness of the split which is removed being above the edge of the knife 23 which determines 25 termined'by t distance w n a plane the thickness of the shaving or split removed passed longitudinally of the knife through the from a piece of work. The gage 29 may bead d e thereof and the p the Work-Supporting justed to vary this distance by turning a screw face of the table over which the work is fed., The 31 which is threaded into the upper part of the, {)0 split or shaving which is removed is usually a very age 29 and is held from longitudinal movement 'thin and flimsy one so that the'splitting operation by collars 33 rigid with the stem of the screw and must be y accurately p ed- In der t engaging respectively the upper and the lowerimprove the operation of machines for removing faces of a bar 35 fastened to the carrier 15 by thin splits or shavings from sheet material, the cap screws 3'7.

35 present invention providesaconstruction in which The workis fed beneath the thin lower edge 35 the work is fed beneath a presser or gage to a of the gage '29 to the knife 23 by a flat-faced knife y a turntable ving a deformable workturntable 39, the work-supportingportion of supporting portion. 3 which is deformable, being herein shown as a In the illustrated construction the flat-faced fiat annular rubber member mountediin an an- 40 work-supporting portion of the turntable is made nular recess in the frame of'thev turntable. The 40' of rubber so as to provide for pieces of work which turntable is fastened to the upper end of a are not of uniform thickness throughout, and the vertical spindle 43; Formed on the lower side of edge of the knife is disposed at an angle to the the turntable is a hub {15 between which and the radii of the turntable so that a draw out is prohead of a threaded sleeve 4:: are a series of balls 45 duced. 19 to provide a ball thrust bearing for supporting These and other features of the invention inthe turntable, holes 51 being provided in the head eluding certain details of construction and combi of the sleeve for the insertion of a rod by the nations of parts will be described as embodied in use of which the sleeve, which is threaded into an illustrated machine" and pointed out in the the frame 5, may be turned to raise or lower the appended claims. turntable. The vertical spindle 43 is rotatable in 50 Referring to the accompanying drawings, this sleeve and in an alined bore below it formed. Fig. 1 is a front elevation of amachine in which in the frame 5. Formed on the lower portion of the present invention is embodied; the turntable is a large gear 53 which meshes Fig. 2 is an end elevation of the machine with with a pinion 55 on the upper end of a vertical 55 certain parts broken away; and. shaft 57 rotatable in a bearing in the frame of 55 the machine, the lower end of the vertical shaft 57 having fast to it a bevel gear 59. A bevel pinion 61, fast to one end of a horizontal shaft 63, meshes with the bevel gear 59. The other end of the shaft 63 carries a pulley 65 which may be rotated by a belt, not shown, from any suitable source of power.

' In the use of the machine the knife is adjusted into the desired angular position by loosening the cap screws 21 and swinging the carrier 15 about the axis of its trunnions so that there will be proper clearance for the passage of the work between the knife and the turntable. The gage 29 is adjusted by turning the screw 31 until the distance between its lower thin extremity and the edge of the knife is equal to the desired thickness of the split or shaving which is to be removed;

and the turntable is adjusted to the proper height by turning the sleeve 47. Power is then applied torotate the turntable continuously. The operatorstands in front of the, machine and places soles" one after another upon the rubber top of the turntable, whereupon they are carried successively to and past the knife. By referring to Fig. 3, it will ,be seen that the edge of the knife is disposed at an angle to the radii of the turntable and that the knife is thus caused to operate upon a' sole or other. piece of work with a draw out. V

Although the inventionhas been set forth as embodied in aparticular machine, it should be understood that the invention is not limited in the scope of its application to the particular ma 'chine which has been shown and described.

' from the edge of the gage, a turntable including a deformable portion upon which the work is placed, and means for rotating the turntable to feed the work past said knife and gage.

2, A splittingmachin'e having in combination, an unyielding gage, a knife'having its cutting edge closely adjacent to the gage, a turntable in cluding a deformable portion upon which the work isv placed, said turntable being adjustable toward and from the gage, and means for rotating the turntable to feed the work past the knife and gage.

3. A splitting machine having in combination; an unyielding gage, a knife having its cutting edge closely adjacent to but spaced somewhat from the edge of the gage, a turntable including a deformable portion upon which the work is placed, and means for rotating the turntable to feed the work past said knife and gage, said deformable portion yielding to accommodate variations in the thickness of the work whereby a thin shaving of uniform thickness passes between the gage and the knife and is removed from each piece of work irrespective ofyvariations in its thickness.

4. A splitting machine havingin combination,

an unyielding gage, a knife having its cutting edge closely adjacent to but spaced, somewhat from theedge of the gage, a turntable including a deformable portion upon which the work is placed, and means for rotating the turntable to feed the workpast said knifef and gage, said cle-"v r formable portion yielding 'to' accommodate variations in the thickness of the work whereby a. 1 thin shaving of uniform thickness passes between I the gage and the knifeand is removed from each piece of work irrespective of variations in .its

thickness, the edge of the knife being arranged at an angle to the radii of the turntable so that a draw out is produced upon the work.

5. A splitting machine having in combination, an unyielding gage, a knife having its cutting edge closely adjacent to. but spaced somewhat from the edge of the gage, a substantially fiatfaced turntable including a deformable workreceiving portion, and means for, rotating-the turntable to feed the work past said knife and gage, said knife and gage being relatively ad justable to vary the space between them.-: H 6. A splitting machine having in combination, an unyielding gage, a knife having-its cutting edge closely adjacent to but spaced somewhat from the edge of the gage, a substantially flat:

faced turntable including a deformable work-re ceiving portion, and meansfor. rotating the turn{ table to feed the work pastsaidknife and gage, said knife being adjustable to vary-its angular relation to the plane of the surface. of the turn; table.

'7. A splitting machine, having in combination, a base, a turntable rotatably mounted thereon, a

carrier pivotally mounted on the basejandex tending over the turntable whereby said carrier may be adjusted angularly, a knife mounted on the carrier and a gage having its work-engaging portion in front of the edge of theknife and lo cated abovethe levelofthat' of the edge oftheknife.

8. A splitting machinehavingin combination, a base, a turntable rotatablyimount'ed thereon, a

carrier. pivotallymounted on the base. and ex tending over theturntable whereby said carrier;

maybe adjusted angularly, a knife adjustably'.

mounted on thecarrier and a gage having its.

work-engaging portion in front of the edge of theknife and located above the level of that of the edge of the knife.

9. A splitting machine vhavingin combination, a base; a' turntable rotatably mounted .thereon,. acarrier pivotally mounted on the base and ex-:

tending over the turntable whereby said carrier, may be adjusted angularly, a knife mounted on the carrier'and a gage also mounted on .thecarrier and having its work-engaging portionkin;

front of the edge of the knife and located above.

the level of that of the edge offthe knife.

HARRY LYON. 

